Edexcel IGCSE Biology Biology Paper 1 June 2022 examiner report (4BI1/1BR)
Examiner report
- Q1 - 6 marks - Cell structure, Enzymes
- Q2 - 11 marks - Classification, Food production using micro-organisms, Genetic engineering, Pathogens
- Q3 - 13 marks - Abiotic and biotic factors, Ecosystems, Energy in ecosystems, Sampling and fieldwork
- Q4 - 12 marks - Ventilation and the thorax
- Q5 - 10 marks - Genes and alleles, Monohybrid inheritance, Probability and ratios in genetic crosses, Variation
- Q6 - 13 marks - Diet and nutrition, Digestion
- Q7 - 10 marks - Cell structure, Temperature regulation
- Q8 - 13 marks - Mineral ions in plants
- Q9 - 12 marks - Enzymes, Pollination and fertilisation in plants, Seed germination
- Q10 - 10 marks - Blood, Natural selection, The specific immune response
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